The best Open Source alternatives to OpenAI API in 2026
We compare 5 self-hostable tools you can deploy on your own server in minutes, with license, tech stack and a ready-to-copy docker-compose.
Ollama
Alternative to OpenAI API
Run open source LLMs locally, an alternative to the OpenAI API.
MIT 99k
Docker Ready1-Click DeployPermissive License
View profile and deployment guideLocalAI
Alternative to OpenAI API
OpenAI-compatible API running local models, no per-token cost.
MIT 26k
Docker Ready1-Click DeployPermissive License
View profile and deployment guidevLLM
Alternative to OpenAI API
High-performance LLM inference engine, an alternative to the OpenAI API in production.
Apache-2.0 29k
Docker ReadyPermissive License
View profile and deployment guideDify
Alternative to OpenAI API
Platform for building AI apps with a visual editor and observability.
Apache-2.0 54k
Docker ReadyPermissive License
View profile and deployment guideText Generation WebUI
Alternative to OpenAI API
Advanced interface for local text models, an alternative to the OpenAI API.
AGPL-3.0 42k
Docker Ready
View profile and deployment guide